Mastering the Art of Growing Leek in Your Own Backyard

Written by: Lars Nyman

Growing Leek

Growing Leek

Leek is a vegetable from the onion family with a mild, sweet flavor and long, slender stalks. It is typically found in the grocery store in bundles with the dark green tops and the white root end still intact, and can be eaten raw or cooked. The leaves can also be used in stocks and soups, and the leaves are often used to flavor omelets, stews, and salads. Leeks are high in Vitamins K, A and C and are a vital component of many traditional dishes.

Cheatsheet: Growing Leeks


🌱 Start leeks indoors 8-10 weeks before last frost.

🌱 Transplant seedlings 6 inches apart in well-drained soil.


💦 Water consistently to keep soil moist, but not waterlogged.

💦 Aim for 1 inch of water per week.


🌿 Fertilize with balanced organic fertilizer every 4-6 weeks.

🌿 Leeks thrive in nutrient-rich soil.

Companion Plants

🌼 Plant leeks near carrots, celery, or onions.

🌼 Marigolds ward off pests and attract pollinators.


🚜 Harvest leeks when they reach 1-2 inches in diameter.

🚜 Twist and pull leeks gently to loosen from the ground.


🏺 Store harvested leeks in a cool, dark place.

🏺 Refrigerate leeks to maintain freshness for up to 2 weeks.

Health Benefits

💪 Leeks are rich in Vitamin K, essential for bone health.

💪 High in fiber, leeks support healthy digestion.

Fun Fact

🌍 The world record for the longest leek is 52 inches!

So you want to grow leeks? Well, let me tell you, it's one of the most rewarding experiences you can have as a gardener. Leeks are not only delicious, but they are also incredibly versatile in the kitchen. Whether you're a seasoned pro or just starting out, growing leeks is a relatively straightforward process that can be done in your backyard or even in containers. Here are some tips and tricks I've picked up over the years to help you grow the best leeks ever.

1. Choose the Right Variety

There are many different varieties of leeks out there, so it's important to choose the one that suits your taste and growing conditions. Some popular options include 'Musselburgh' and 'American Flag'. Consider the size of leeks you prefer, as well as the climate and soil conditions in your area. Remember, not all varieties are created equal, so do a little research before making your selection.

2. Prepare the Soil

The key to successful leek cultivation is well-prepared soil. Leeks love loose, rich soil with plenty of organic matter. Prior to planting, amend your soil with compost or well-rotted manure to improve its fertility. Make sure the soil is well-draining too, as leeks don't like their roots sitting in water. A soil pH of around 6.0 to 7.0 is ideal for leeks.

3. Start Seeds Indoors

While direct sowing leek seeds is possible, starting them indoors gives you a head start and increases your chances of success. About 10-12 weeks before the last frost date in your area, sow your seeds in seed trays or small pots filled with seed starting mix. Keep the soil moist but not waterlogged, and provide them with plenty of light and warmth. Once the seedlings are around 6-8 inches tall, they're ready to be transplanted outdoors.

4. Transplanting Leek Seedlings

When the danger of frost has passed and your leek seedlings are sturdy enough, it's time to transplant them into the garden. Choose a sunny spot with well-prepared soil and dig shallow trenches about 6-8 inches deep. Gently place the seedlings into the trenches, spacing them around 6 inches apart. Backfill the trenches, making sure the soil covers the lower inch of the stems. Water the seedlings immediately after transplanting to settle the soil around the roots.

5. Water and Mulch

In order to achieve those long, blanched stems we all love, leeks need consistent moisture. Water deeply and regularly, especially during dry spells, but be careful not to overwater. Mulching around the base of the plants can help retain moisture and suppress weeds. Summer droughts can cause leeks to become woody, so make sure to keep them well-hydrated throughout their growing season.

6. Hill up the Soil

As your leeks grow, it's important to hill up the soil around the stems to encourage blanching. Every few weeks, gently draw soil around the base of the plants, gradually covering more of the stem. This will ensure a larger edible portion and gives the leeks their distinct white color. Make sure not to bury the foliage, as this can lead to rotting.

7. Harvesting Leeks

Once your leeks have reached the desired size, it's time to harvest. This usually happens around 90-120 days after planting, depending on the variety. Leeks can be harvested at any stage, but they are typically left in the ground until they are around 1-2 inches in diameter. Use a garden fork to gently loosen the soil around the base of the leeks, and then carefully lift them out. Rinse off any dirt and enjoy the fruits of your labor!

Did you know that leeks are actually a close relative of onions and garlic? They belong to the Allium family, which also includes chives and shallots. Next time you're in the garden, take a closer look at your leeks and appreciate their unique heritage!

So there you have it - a beginner's guide to growing leeks. With a little patience and care, you'll be harvesting your own delicious leeks in no time. Remember to keep experimenting in the kitchen with these versatile veggies - they can be used in soups, stews, stir-fries, and even as a side dish. Good luck, and happy gardening!


1. What is the ideal time to plant leek seeds?

The ideal time to plant leek seeds is in early spring.

2. How deep should leek seeds be sown?

Leek seeds should be sown about half an inch deep in the soil.

3. How far apart should leek plants be spaced?

Leek plants should be spaced about 6 inches apart.

4. How often should leek plants be watered?

Leek plants should be watered regularly, keeping the soil moist but not overly saturated.

5. When should leek plants be harvested?

Leek plants can be harvested when they reach the desired size, usually in late summer or early fall.

6. How can I protect leek plants from pests?

Using organic pest control methods, such as companion planting or applying natural repellents, can help protect leek plants from pests.

7. Do leek plants require any special care?

Leek plants require minimal care, but it is important to regularly weed around them and provide adequate water and nutrients.

Leek is an easy-to-grow vegetable that has a mild onion-like flavor and is great for adding to soup and salads. It is a cool season crop that grows best in soils that are not heavily silt or clay enriched. Leeks have high nutrient content and are known for their anti-inflammatory and cardiovascular benefits. They are also low in calories, making it a perfect choice for cooking. With its versatility and health benefits, leek is a great addition to any garden.

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